Driving past giant saguaros and red rock canyons is one of those trips you need to do at least once. The best times to go are spring or fall, when the desert heat won't melt your car's tires or your patience. You get cool nights, warm days, and empty highway stretches that look like movie sets.
A solid two-week loop through places like Zion, the Grand Canyon, and Sedona runs about $3,000 for gas, parks, and cool retro motels. Instead of dropping that cash all at once, we can split the cost over a year and a half without paying extra for the privilege.
Here is the catch you need to keep in mind. The 18-month window is a strict deadline, not free money. If you still have a balance left when the promotional period ends, you will face the card's regular interest rate on whatever is left, which quickly erases your savings.